#include<bits/stdc++.h>
#define ll long long
#define pii pair<ll,ll>
using namespace std;
const int mxn=5e5+5;
const ll inf=1e18;
struct segtree {
ll tree[4*mxn];
void init() {
for(int i=1;i<4*mxn;i++) tree[i]=-inf;
}
void update(int node,int b,int e,int p,ll v) {
if(e<p || b>p)return;
if(b==e) {
tree[node]=v;
return;
}
int mid=b+e>>1;
int left=node<<1;
int right=left|1;
update(left,b,mid,p,v);
update(right,mid+1,e,p,v);
tree[node]=max(tree[left],tree[right]);
}
} st;
int main() {
int n;
cin>>n;
pii a[n];
for(int i=0;i<n;i++) {
scanf("%lld %lld",&a[i].first,&a[i].second);
}
sort(a,a+n);
reverse(a,a+n);
st.init();
ll ps=0;
for(int i=0;i<n;i++) {
ps+=a[i].second;
st.update(1,1,n,i+1,ps+a[i].first);
}
ps=0;
ll ans=-inf;
for(int i=0;i<n;i++) {
ll v=st.tree[1];
v-=ps+a[i].first;
ans=max(ans,v);
st.update(1,1,n,i+1,-inf);
ps+=a[i].second;
}
cout<<ans<<endl;
}
Compilation message
art.cpp: In member function 'void segtree::update(int, int, int, int, long long int)':
art.cpp:21:12: warning: suggest parentheses around '+' inside '>>' [-Wparentheses]
21 | int mid=b+e>>1;
| ~^~
art.cpp: In function 'int main()':
art.cpp:38:8: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result]
38 | scanf("%lld %lld",&a[i].first,&a[i].second);
| ~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
10 ms |
16000 KB |
Output is correct |
| 2 |
Correct |
9 ms |
16000 KB |
Output is correct |
| 3 |
Correct |
9 ms |
16000 KB |
Output is correct |
| 4 |
Correct |
9 ms |
16000 KB |
Output is correct |
| 5 |
Correct |
10 ms |
16000 KB |
Output is correct |
| 6 |
Correct |
9 ms |
16000 KB |
Output is correct |
| 7 |
Correct |
9 ms |
16000 KB |
Output is correct |
| 8 |
Correct |
9 ms |
16000 KB |
Output is correct |
| 9 |
Correct |
9 ms |
16000 KB |
Output is correct |
| 10 |
Correct |
9 ms |
16000 KB |
Output is correct |
| 11 |
Correct |
10 ms |
16000 KB |
Output is correct |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
10 ms |
16000 KB |
Output is correct |
| 2 |
Correct |
9 ms |
16000 KB |
Output is correct |
| 3 |
Correct |
9 ms |
16000 KB |
Output is correct |
| 4 |
Correct |
9 ms |
16000 KB |
Output is correct |
| 5 |
Correct |
10 ms |
16000 KB |
Output is correct |
| 6 |
Correct |
9 ms |
16000 KB |
Output is correct |
| 7 |
Correct |
9 ms |
16000 KB |
Output is correct |
| 8 |
Correct |
9 ms |
16000 KB |
Output is correct |
| 9 |
Correct |
9 ms |
16000 KB |
Output is correct |
| 10 |
Correct |
9 ms |
16000 KB |
Output is correct |
| 11 |
Correct |
10 ms |
16000 KB |
Output is correct |
| 12 |
Correct |
10 ms |
16032 KB |
Output is correct |
| 13 |
Correct |
10 ms |
16000 KB |
Output is correct |
| 14 |
Correct |
11 ms |
16000 KB |
Output is correct |
| 15 |
Correct |
10 ms |
16000 KB |
Output is correct |
| 16 |
Correct |
10 ms |
16000 KB |
Output is correct |
| 17 |
Correct |
9 ms |
16000 KB |
Output is correct |
| 18 |
Correct |
10 ms |
16000 KB |
Output is correct |
| 19 |
Correct |
9 ms |
16000 KB |
Output is correct |
| 20 |
Correct |
11 ms |
16000 KB |
Output is correct |
| 21 |
Correct |
10 ms |
16000 KB |
Output is correct |
| 22 |
Correct |
12 ms |
16000 KB |
Output is correct |
| 23 |
Correct |
10 ms |
16000 KB |
Output is correct |
| 24 |
Correct |
10 ms |
16000 KB |
Output is correct |
| 25 |
Correct |
10 ms |
16000 KB |
Output is correct |
| 26 |
Correct |
10 ms |
16000 KB |
Output is correct |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
10 ms |
16000 KB |
Output is correct |
| 2 |
Correct |
9 ms |
16000 KB |
Output is correct |
| 3 |
Correct |
9 ms |
16000 KB |
Output is correct |
| 4 |
Correct |
9 ms |
16000 KB |
Output is correct |
| 5 |
Correct |
10 ms |
16000 KB |
Output is correct |
| 6 |
Correct |
9 ms |
16000 KB |
Output is correct |
| 7 |
Correct |
9 ms |
16000 KB |
Output is correct |
| 8 |
Correct |
9 ms |
16000 KB |
Output is correct |
| 9 |
Correct |
9 ms |
16000 KB |
Output is correct |
| 10 |
Correct |
9 ms |
16000 KB |
Output is correct |
| 11 |
Correct |
10 ms |
16000 KB |
Output is correct |
| 12 |
Correct |
10 ms |
16032 KB |
Output is correct |
| 13 |
Correct |
10 ms |
16000 KB |
Output is correct |
| 14 |
Correct |
11 ms |
16000 KB |
Output is correct |
| 15 |
Correct |
10 ms |
16000 KB |
Output is correct |
| 16 |
Correct |
10 ms |
16000 KB |
Output is correct |
| 17 |
Correct |
9 ms |
16000 KB |
Output is correct |
| 18 |
Correct |
10 ms |
16000 KB |
Output is correct |
| 19 |
Correct |
9 ms |
16000 KB |
Output is correct |
| 20 |
Correct |
11 ms |
16000 KB |
Output is correct |
| 21 |
Correct |
10 ms |
16000 KB |
Output is correct |
| 22 |
Correct |
12 ms |
16000 KB |
Output is correct |
| 23 |
Correct |
10 ms |
16000 KB |
Output is correct |
| 24 |
Correct |
10 ms |
16000 KB |
Output is correct |
| 25 |
Correct |
10 ms |
16000 KB |
Output is correct |
| 26 |
Correct |
10 ms |
16000 KB |
Output is correct |
| 27 |
Correct |
12 ms |
16000 KB |
Output is correct |
| 28 |
Correct |
14 ms |
16000 KB |
Output is correct |
| 29 |
Correct |
13 ms |
16000 KB |
Output is correct |
| 30 |
Correct |
13 ms |
16000 KB |
Output is correct |
| 31 |
Correct |
13 ms |
16000 KB |
Output is correct |
| 32 |
Correct |
13 ms |
16000 KB |
Output is correct |
| 33 |
Correct |
13 ms |
16000 KB |
Output is correct |
| 34 |
Correct |
13 ms |
16000 KB |
Output is correct |
| 35 |
Correct |
13 ms |
16000 KB |
Output is correct |
| 36 |
Correct |
13 ms |
16000 KB |
Output is correct |
| 37 |
Correct |
13 ms |
16000 KB |
Output is correct |
| 38 |
Correct |
13 ms |
16000 KB |
Output is correct |
| 39 |
Correct |
13 ms |
16000 KB |
Output is correct |
| 40 |
Correct |
13 ms |
16000 KB |
Output is correct |
| 41 |
Correct |
12 ms |
16000 KB |
Output is correct |
| 42 |
Correct |
13 ms |
16000 KB |
Output is correct |
| 43 |
Correct |
13 ms |
16000 KB |
Output is correct |
| 44 |
Correct |
13 ms |
16000 KB |
Output is correct |
| 45 |
Correct |
13 ms |
16000 KB |
Output is correct |
| 46 |
Correct |
13 ms |
16000 KB |
Output is correct |
| 47 |
Correct |
13 ms |
16000 KB |
Output is correct |
| 48 |
Correct |
13 ms |
16000 KB |
Output is correct |
| 49 |
Correct |
13 ms |
16256 KB |
Output is correct |
| 50 |
Correct |
16 ms |
16000 KB |
Output is correct |
| 51 |
Correct |
13 ms |
16000 KB |
Output is correct |
| # |
Verdict |
Execution time |
Memory |
Grader output |
| 1 |
Correct |
10 ms |
16000 KB |
Output is correct |
| 2 |
Correct |
9 ms |
16000 KB |
Output is correct |
| 3 |
Correct |
9 ms |
16000 KB |
Output is correct |
| 4 |
Correct |
9 ms |
16000 KB |
Output is correct |
| 5 |
Correct |
10 ms |
16000 KB |
Output is correct |
| 6 |
Correct |
9 ms |
16000 KB |
Output is correct |
| 7 |
Correct |
9 ms |
16000 KB |
Output is correct |
| 8 |
Correct |
9 ms |
16000 KB |
Output is correct |
| 9 |
Correct |
9 ms |
16000 KB |
Output is correct |
| 10 |
Correct |
9 ms |
16000 KB |
Output is correct |
| 11 |
Correct |
10 ms |
16000 KB |
Output is correct |
| 12 |
Correct |
10 ms |
16032 KB |
Output is correct |
| 13 |
Correct |
10 ms |
16000 KB |
Output is correct |
| 14 |
Correct |
11 ms |
16000 KB |
Output is correct |
| 15 |
Correct |
10 ms |
16000 KB |
Output is correct |
| 16 |
Correct |
10 ms |
16000 KB |
Output is correct |
| 17 |
Correct |
9 ms |
16000 KB |
Output is correct |
| 18 |
Correct |
10 ms |
16000 KB |
Output is correct |
| 19 |
Correct |
9 ms |
16000 KB |
Output is correct |
| 20 |
Correct |
11 ms |
16000 KB |
Output is correct |
| 21 |
Correct |
10 ms |
16000 KB |
Output is correct |
| 22 |
Correct |
12 ms |
16000 KB |
Output is correct |
| 23 |
Correct |
10 ms |
16000 KB |
Output is correct |
| 24 |
Correct |
10 ms |
16000 KB |
Output is correct |
| 25 |
Correct |
10 ms |
16000 KB |
Output is correct |
| 26 |
Correct |
10 ms |
16000 KB |
Output is correct |
| 27 |
Correct |
12 ms |
16000 KB |
Output is correct |
| 28 |
Correct |
14 ms |
16000 KB |
Output is correct |
| 29 |
Correct |
13 ms |
16000 KB |
Output is correct |
| 30 |
Correct |
13 ms |
16000 KB |
Output is correct |
| 31 |
Correct |
13 ms |
16000 KB |
Output is correct |
| 32 |
Correct |
13 ms |
16000 KB |
Output is correct |
| 33 |
Correct |
13 ms |
16000 KB |
Output is correct |
| 34 |
Correct |
13 ms |
16000 KB |
Output is correct |
| 35 |
Correct |
13 ms |
16000 KB |
Output is correct |
| 36 |
Correct |
13 ms |
16000 KB |
Output is correct |
| 37 |
Correct |
13 ms |
16000 KB |
Output is correct |
| 38 |
Correct |
13 ms |
16000 KB |
Output is correct |
| 39 |
Correct |
13 ms |
16000 KB |
Output is correct |
| 40 |
Correct |
13 ms |
16000 KB |
Output is correct |
| 41 |
Correct |
12 ms |
16000 KB |
Output is correct |
| 42 |
Correct |
13 ms |
16000 KB |
Output is correct |
| 43 |
Correct |
13 ms |
16000 KB |
Output is correct |
| 44 |
Correct |
13 ms |
16000 KB |
Output is correct |
| 45 |
Correct |
13 ms |
16000 KB |
Output is correct |
| 46 |
Correct |
13 ms |
16000 KB |
Output is correct |
| 47 |
Correct |
13 ms |
16000 KB |
Output is correct |
| 48 |
Correct |
13 ms |
16000 KB |
Output is correct |
| 49 |
Correct |
13 ms |
16256 KB |
Output is correct |
| 50 |
Correct |
16 ms |
16000 KB |
Output is correct |
| 51 |
Correct |
13 ms |
16000 KB |
Output is correct |
| 52 |
Correct |
448 ms |
23928 KB |
Output is correct |
| 53 |
Correct |
476 ms |
36472 KB |
Output is correct |
| 54 |
Correct |
436 ms |
36472 KB |
Output is correct |
| 55 |
Correct |
460 ms |
36472 KB |
Output is correct |
| 56 |
Correct |
448 ms |
36472 KB |
Output is correct |
| 57 |
Correct |
445 ms |
36600 KB |
Output is correct |
| 58 |
Correct |
440 ms |
36472 KB |
Output is correct |
| 59 |
Correct |
445 ms |
36472 KB |
Output is correct |
| 60 |
Correct |
447 ms |
36472 KB |
Output is correct |
| 61 |
Correct |
449 ms |
36344 KB |
Output is correct |
| 62 |
Correct |
455 ms |
36472 KB |
Output is correct |
| 63 |
Correct |
429 ms |
36464 KB |
Output is correct |
| 64 |
Correct |
440 ms |
36600 KB |
Output is correct |
| 65 |
Correct |
436 ms |
36472 KB |
Output is correct |
| 66 |
Correct |
438 ms |
36476 KB |
Output is correct |
| 67 |
Correct |
430 ms |
36600 KB |
Output is correct |
| 68 |
Correct |
428 ms |
36472 KB |
Output is correct |
